Photographer is Emily Stokes of Boston, Massachusetts. Otherwise undated and unidentified, but see below.

Comments:

I believe this is the same girl who can be found here and here. I always assumed she was an older version of the girl in the other pictures, but looking closer as I created this post, I realized she’s wearing the same dress as the photo with just the boy, so maybe this is the same photo session as that one. In any case, she’d beautiful, dressed to the nines, and looks ready to have a splendid day. By the way, it wasn’t until I blew up the scan that I noticed her eyes have been touched up with little black dots on the pupils to make them pop. Sometimes that trick is done inexpertly and makes the subject look like and alien. But here it is effective.